W326305
L-Cysteine
≥97%, FG
Synonym(s):
(R)-2-Amino-3-mercaptopropionic acid
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About This Item
Linear Formula:
HSCH2CH(NH2)CO2H
CAS Number:
Molecular Weight:
121.16
FEMA Number:
3263
UNSPSC Code:
12164502
eCl@ss:
32160406
PubChem Substance ID:
Flavis number:
17.033
EC Number:
200-158-2
NACRES:
NA.21
MDL number:
Beilstein/REAXYS Number:
1721408
Organoleptic:
sulfurous
Grade:
FG, Halal
Quality Level
grade
FG, Halal
reg. compliance
EU Regulation 1334/2008 & 872/2012, FDA 21 CFR 172.320, FDA 21 CFR 184.1271
assay
≥97%
optical activity
[α]26/D +8.0 to +9.5°, c = 2 in 5 M HCl
mp
240 °C (dec.) (lit.)
solubility
H2O: 25 mg/mL
application(s)
flavors and fragrances
documentation
see Safety & Documentation for available documents
organoleptic
sulfurous
SMILES string
N[C@@H](CS)C(O)=O
InChI
1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)/t2-/m0/s1
InChI key
XUJNEKJLAYXESH-REOHCLBHSA-N
General description
L-cysteine is a sulfur-containing amino acid. It can undergo Maillard reaction with reducing sugars to form volatile meat flavored compounds.
Biochem/physiol Actions
NMDA glutamatergic receptor agonist.
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Storage Class
13 - Non Combustible Solids
wgk
WGK 1
ppe
dust mask type N95 (US), Eyeshields, Gloves
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Related Content
Volatile compounds produced by the reaction of L-cysteine or L-cystine with carbonyl compounds.
Kato S, et al.
Agricultural and Biological Chemistry, 37(3), 539-544 (1973)
Antioxidant effects of sulfur-containing amino acids
Atmaca G
Yonsei Medical Journal, 45, 776-788 (2004)
Takeshi Annoura et al.
FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 28(5), 2158-2170 (2014-02-11)
The 10 Plasmodium 6-Cys proteins have critical roles throughout parasite development and are targets for antimalaria vaccination strategies. We analyzed the conserved 6-cysteine domain of this family and show that only the last 4 positionally conserved cysteine residues are diagnostic